Water soluble polymer esters and process for producing same

Details Water soluble polymer esters and process for producing same Water soluble polymer esters and process for producing same

C - Chemistry, Metallurgy

08

B

260/212, 402/340

C08B 5/00 (2006.01) C08B 31/06 (2006.01) C08B 37/00 (2006.01)

Patent

CA 1045126

ABSTRACT OF THE DISCLOSURE A process is provided for preparing nitrate esters, or poly- meric sulfuric acid esters or salts thereof, or a mixed polymer nitrite sulfuric acid ester, or a polymer sulfuric acid ester, or a salt of a polymer sulfuric acid ester, from polymer nitrite. The polymer nitrite esters thus may be heated in the presence of nitric acid under specific conditions to form corresponding water soluble polymer nitrate esters. Also, polymer sulfate ester salts may be prepared by sulfating the poly- mer nitrite ester to obtain the corresponding polymer nitrite sulfuric acid ester, reacting same with a protic solvent to obtain the polymer sulfate ester, and neutralizing or slightly alkalizing the polymer sul- fate ester reaction mixture with a base to produce the corresponding polymer sulfate ester salt.

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